Harringtonolide

Name: Harringtonolide
Brand: MedChemExpress
SKU: HY-N10335
Rating: 5.0 (2 reviews)

Cat. No.: HY-N10335 Purity: 98%: Data Sheet
COA

SDS
Handling Instructions
FAQs
Technical Support

Harringtonolide is a potent RACK1 inhibitor (IC₅₀=39.66 μM in A375 cells). Harringtonolide inhibits the epithelial-mesenchymal transition (EMT) process and cell proliferation by affecting the interaction between FAK and RACK1. Harringtonolide has plant growth inhibitory, antiviral, anti-inflammatory, and antiproliferation activities.

For research use only. We do not sell to patients.

Harringtonolide Chemical Structure

CAS No. : 64761-48-4

Size	Stock	Quantity
1 mg	In-stock	Estimated Time of Arrival: December 31
5 mg	In-stock	Estimated Time of Arrival: December 31
10 mg	Get quote
50 mg	Get quote

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Customer Review

Based on 2 publication(s) in Google Scholar

2 Publications Citing Use of MCE Harringtonolide

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Biological Activity
Purity & Documentation
References
Customer Review

Description

IC₅₀ & Target

IC₅₀: 39.66 μM (RACK1) in A375 cells^[1]

In Vitro

Harringtonolide (0-50 μM; 24 hours) exhibits good antiproliferation activity in A375 cells with IC₅₀ of 39.66 μM^[1].
Harringtonolide (0-20 μM; 1 hour) restrains the proteolysis of RACK1 by Pronase, and protects temperature-dependent degradation of RACK1^[1].
Harringtonolide (0-4 μM; 24 hours) suppresses the phosphorylation of FAK dose-dependently and inhibits Src and STAT3, the downstream proteins of FAK^[1].
Harringtonolide (0-4 μM; 24 hours) dose-dependently inhibits the RACK1–FAK interaction in A375 cells^[1].

MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.

Cell Proliferation Assay

Cell Line:	A375 melanoma cells^[1]
Concentration:	0-50 μM
Incubation Time:	24 hours
Result:	Showed good antiproliferation activity with IC₅₀ of 39.66 μM.

Western Blot Analysis

Cell Line:	A375 melanoma cells^[1]
Concentration:	0, 0.5, 1, 2, 4 μM
Incubation Time:	24 hours
Result:	Suppressed the phosphorylation of FAK dose-dependently and inhibited Src and STAT3, the downstream proteins of FAK.

Molecular Weight

310.34

Formula

C₁₉H₁₈O₄

CAS No.

64761-48-4

Appearance

Solid

Color

White to off-white

SMILES

O=C1C=C(CC2)C3=C([C@H]4C(C5O6)C3[C@@]2([C@H](C)[C@H]5O4)C6=O)C(C)=C1

Structure Classification

Ketones, Aldehydes, Acids

Initial Source

Shipping

Room temperature in continental US; may vary elsewhere.

Storage

4°C, protect from light

*In solvent : -80°C, 6 months; -20°C, 1 month (protect from light)

Solvent & Solubility

In Vitro:

DMSO : 5 mg/mL (16.11 mM; ultrasonic and warming and heat to 60°C; Hygroscopic DMSO has a significant impact on the solubility of product, please use newly opened DMSO)

Preparing
Stock Solutions

Concentration Solvent Mass	1 mg	5 mg	10 mg

1 mM	3.2223 mL	16.1114 mL	32.2227 mL
5 mM	0.6445 mL	3.2223 mL	6.4445 mL
10 mM	0.3222 mL	1.6111 mL	3.2223 mL

View the Complete Stock Solution Preparation Table

* Please refer to the solubility information to select the appropriate solvent. Once prepared, please aliquot and store the solution to prevent product inactivation from repeated freeze-thaw cycles.
Storage method and period of stock solution: -80°C, 6 months; -20°C, 1 month (protect from light). When stored at -80°C, please use it within 6 months. When stored at -20°C, please use it within 1 month.

Molarity Calculator
Dilution Calculator

Mass (g) = Concentration (mol/L) × Volume (L) × Molecular Weight (g/mol)

Concentration _(start) × Volume _(start) = Concentration _(final) × Volume _(final)

This equation is commonly abbreviated as: C₁V₁ = C₂V₂

Concentration _(start)

Volume _(start)

Concentration _(final)

Volume _(final)

In Vivo:

Select the appropriate dissolution method based on your experimental animal and administration route.

For the following dissolution methods, please ensure to first prepare a clear stock solution using an In Vitro approach and then sequentially add co-solvents:
To ensure reliable experimental results, the clarified stock solution can be appropriately stored based on storage conditions. As for the working solution for in vivo experiments, it is recommended to prepare freshly and use it on the same day.
The percentages shown for the solvents indicate their volumetric ratio in the final prepared solution. If precipitation or phase separation occurs during preparation, heat and/or sonication can be used to aid dissolution.

Protocol 1

Add each solvent one by one: 10% DMSO 40% PEG300 5% Tween-80 45% Saline
Solubility: ≥ 0.5 mg/mL (1.61 mM); Clear solution

This protocol yields a clear solution of ≥ 0.5 mg/mL (saturation unknown).
Taking 1 mL working solution as an example, add 100 μL DMSO stock solution (5.0 mg/mL) to 400 μL PEG300, and mix evenly; then add 50 μL Tween-80 and mix evenly; then add 450 μL Saline to adjust the volume to 1 mL.
Preparation of Saline: Dissolve 0.9 g sodium chloride in ddH₂O and dilute to 100 mL to obtain a clear Saline solution.
Protocol 2

Add each solvent one by one: 10% DMSO 90% (20% SBE-β-CD in Saline)
Solubility: ≥ 0.5 mg/mL (1.61 mM); Clear solution

This protocol yields a clear solution of ≥ 0.5 mg/mL (saturation unknown).
Taking 1 mL working solution as an example, add 100 μL DMSO stock solution (5.0 mg/mL) to 900 μL 20% SBE-β-CD in Saline, and mix evenly.
Preparation of 20% SBE-β-CD in Saline (4°C, storage for one week): 2 g SBE-β-CD powder is dissolved in 10 mL Saline, completely dissolve until clear.
Protocol 3

Add each solvent one by one: 10% DMSO 90% Corn Oil
Solubility: ≥ 0.5 mg/mL (1.61 mM); Clear solution

This protocol yields a clear solution of ≥ 0.5 mg/mL (saturation unknown). If the continuous dosing period exceeds half a month, please choose this protocol carefully.
Taking 1 mL working solution as an example, add 100 μL DMSO stock solution (5.0 mg/mL) to 900 μL Corn oil, and mix evenly.

In Vivo Dissolution Calculator

Please enter the basic information of animal experiments:

Dosage

mg/kg

Animal weight
(per animal)

Dosing volume
(per animal)

μL

Number of animals

Recommended: Prepare an additional quantity of animals to account for potential losses during experiments.

Please enter your animal formula composition:

DMSO +

Tween-80 +

Saline

Recommended: Keep the proportion of DMSO in working solution below 2% if your animal is weak.

The co-solvents required include: DMSO, . All of co-solvents are available by MedChemExpress (MCE). , Tween 80. All of co-solvents are available by MedChemExpress (MCE).

Calculation results:

Working solution concentration: mg/mL

Method for preparing stock solution: mg drug dissolved in μL DMSO (Stock solution concentration: mg/mL).

*In solvent : -80°C, 6 months; -20°C, 1 month (protect from light)

The concentration of the stock solution you require exceeds the measured solubility. The following solution is for reference only. If necessary, please contact MedChemExpress (MCE).

Method for preparing in vivo working solution for animal experiments: Take μL DMSO stock solution, add μL . μL , mix evenly, next add μL Tween 80, mix evenly, then add μL Saline.

If the continuous dosing period exceeds half a month, please choose this protocol carefully.

Please ensure that the stock solution in the first step is dissolved to a clear state, and add co-solvents in sequence. You can use ultrasonic heating (ultrasonic cleaner, recommended frequency 20-40 kHz), vortexing, etc. to assist dissolution.

Purity & Documentation

Purity: 98%

Select Batch:

Data Sheet (283 KB) SDS (252 KB)

COA (263 KB)

Handling Instructions (2659 KB)

References

[1]. Zhu TY, et al. Photoaffinity Probe Reveals the Potential Target of Harringtonolide for Cancer Cell Migration Inhibition. ACS Med Chem Lett. 2022;13(3):449-456. Published 2022 Feb 2. [Content Brief]

Complete Stock Solution Preparation Table

Optional Solvent	Concentration Solvent Mass	1 mg	5 mg	10 mg	25 mg

DMSO	1 mM	3.2223 mL	16.1114 mL	32.2227 mL	80.5568 mL
	5 mM	0.6445 mL	3.2223 mL	6.4445 mL	16.1114 mL
	10 mM	0.3222 mL	1.6111 mL	3.2223 mL	8.0557 mL
	15 mM	0.2148 mL	1.0741 mL	2.1482 mL	5.3705 mL